diff --git a/platform-observability-agent/debian/postinst b/platform-observability-agent/debian/postinst
index 595f4355..942852b1 100755
--- a/platform-observability-agent/debian/postinst
+++ b/platform-observability-agent/debian/postinst
@@ -46,10 +46,10 @@ chown platform-observability-agent:bm-agents /opt/telegraf/bin/collect_gpu_metri
 chown platform-observability-agent:bm-agents /opt/telegraf/bin/collect_disk_info.sh
 chown platform-observability-agent:bm-agents /opt/telegraf/bin/core_metrics.sh
 
-chmod 744 /etc/edge-node/node/confs/platform-observability-collector
-chmod 744 /etc/edge-node/node/confs/platform-observability-health-check
-chmod 744 /etc/edge-node/node/confs/platform-observability-logging
-chmod 744 /etc/edge-node/node/confs/platform-observability-metrics
+chmod 740 /etc/edge-node/node/confs/platform-observability-collector
+chmod 740 /etc/edge-node/node/confs/platform-observability-health-check
+chmod 740 /etc/edge-node/node/confs/platform-observability-logging
+chmod 740 /etc/edge-node/node/confs/platform-observability-metrics
 
 chown platform-observability-agent:bm-agents /etc/edge-node/node/confs/platform-observability-collector
 chown platform-observability-agent:bm-agents /etc/edge-node/node/confs/platform-observability-health-check